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Finding the Fourth Proportional to 501,001.74, 691,379.87 and 271,558.10

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Solution

The fourth proportional to 501,001.74, 691,379.87 and 271,558.10 is: 374,748.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,001.74 : 691,379.87 = 271,558.10 : x
  2. Step 2: Convert to fraction form
    501,001.74/691,379.87 = 271,558.10/x
  3. Step 3: Cross multiply
    501,001.74x = 691,379.87 × 271,558.10
  4. Step 4: Simplify right side
    501,001.74x = 187,749,804,246.11
  5. Step 5: Solve for x
    x = 187,749,804,246.11/501,001.74
  6. Step 6: Final answer
    x = 374,748.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.